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United States

Interesting Fact: The Golden-crowned Kinglet usually raises two large broods of young, despite the short nesting season of the northern boreal forest. The female feeds her first brood only up until the day after they leave the nest. She then starts laying the second set of eggs while the male takes care of the first brood. The male manages to feed eight or nine nestlings himself, and he occasionally feeds the incubating female too. ( https://www.allaboutbirds.org/guide/Golden-crowned_Kinglet/lifehistory )

Interesting Fact: The Yellow-bellied Sapsucker frequently uses human-produced materials to help in its territorial drumming. Street signs and metal chimney flashing amplify the irregular tapping of a territorial sapsucker. The sapsucker seems to suffer no ill effects of whacking its bill on metal, and a bird will return to a favorite sign day after day to pound out its Morse code-like message. ( https://www.allaboutbirds.org/guide/Yellow-bellied_Sapsucker/lifehistory )

Interesting Fact: Bufflehead fossils from the late Pleistocene (about 500,000 years ago) have been found in Alaska, California, Florida, Illinois, Kansas, Texas, and Washington. One California fossil that resembles a modern Bufflehead dates to the late Pliocene, two million years ago. ( https://www.allaboutbirds.org/guide/Bufflehead/lifehistory )

Interesting Fact: In many regions, the primary winter food of the Whimbrel is crab. The curve of the Whimbrel’s bill nicely matches the shape of fiddler crab burrows. The bird reaches into the crab’s burrow, extracts the crab, washes it if it is muddy, and sometimes breaks off the claws and legs before swallowing it. Indigestible parts are excreted in fecal pellets. ( https://www.allaboutbirds.org/guide/Whimbrel/lifehistory )

Interesting Fact: When foraging, Dark-eyed Juncos typically hop (rather than walk) on the ground, pecking or scratching at the leaf litter, or flit very low in underbrush gleaning food from twigs and leaves. They sometimes fly up from the ground to catch insects from tree trunks. In flight, they flap continuously and pump their tails so the white outer tail feathers flash; flight is very agile as the bird maneuvers through its tangled environs. ( https://www.allaboutbirds.org/guide/Dark-eyed_Junco/lifehistory )

Interesting Fact: The ecological impact of common animals, like this ubiquitous waterbird, can be impressive when you add it all up. One estimate from Back Bay, Virginia, suggested that the local coot population ate 216 tons (in dry weight) of vegetation per winter. ( https://www.allaboutbirds.org/guide/American_Coot )